[EditorBrowsableAttribute(EditorBrowsableState.Never)]
public override double ConversionFactor { get; set; }

<EditorBrowsableAttribute(EditorBrowsableState.Never)> _
Public Overrides Property ConversionFactor As Double
	Get
	Set

[EditorBrowsableAttribute(EditorBrowsableState::Never)]
public:
virtual property double ConversionFactor {
	double get () override;
	void set (double value) override;
}